Service-box.



PATENTED PEB. 18, 1908.

W. DENNISON. SERVICE BOX.

APPLIoATIonrILnD JULYa. 1907.

, ber in elevation.

WILLIAM DENNISON, OF NEW ORLANS, LOUISIANA.

sEEvICE-Box.

Specification of Letters Patent.

Application filed July 8. 1907. Serial No. 382.660.

Patented Feb. 18, 1908.

To all whom 'it may concern:

Be it known that I, WILLIAM hDENNisoN, a citizen of the United States, residing at New Orleans, in the parish of Orleans and State of Louisiana, have invented new and useful Improvements in Service-Boxes, of which the following is a specification.

My present invention pertains to service boxes constructed with a view ofbeing adjusted as to length; and it contemplates the provision of Va service box the length of which may be ex editiously and easily increased or diminishe by the rectilinear /adjustment'of one member with respect to the other followed by the turning of one member through a part of a revolution. p

Other advantageous features of my invention will be fully understood from the following description and claims when the same are read in connection with the drawings accompanying and forming part of this specification, in which:

Figure ,1 is a view illustrating the 'service box constituting the present fand preferred embodiment of my invention as the same apears whenin proper position in thev ground. ig. 2 is a view illustrating the upper and exterior member of the service, box in diametrical section and the lower or interior member in elevation and also illustrating the closure plug of the u per-and exterior mem- IPi 3 is a detail view showing insection the ower or interior member of the box. Fig. 4 is a plan view of the u per end of said lower or interior member. ig. 5 is a cross-section of the'member mentioned, taken in the plane indicated bythe line 5-5 of Fig. 3, looking downward. Fig. 6 is a plan view of the closure plug complementary to the upper or exterior member of the box. Fig. 7 is a horizontal section of the lower portion of the upper or exterior membef the box. Y

Similar letters designate corresponding arts in all of the views of the drawings, ref erring to which: A is the lower or interior member of my novel service box, which is generally tubular in` form, and is preferably cast of iron or other material com atible with the urpose of a service box. T e said member is providedat its lower end with an arch-like base A a, and at its upper end it has equidistant circumferential projections b which are disposed at a rig it angle to its length and are provided, by preference, with beveled ends c for a purpose which will presently be pointed out. At 'about the proportional distance illustrated below the projections b, the member A is provided with three (more or less) vertical series of circumferential rejections d which are also disposed at a rig t angle to the length of the member and are provided with beveled or pointed ends e. The series ofprojections d are each arranged below a space between two of the projections b,ias

best shown in Fig. 2.

B 1s the' ripper or exterior member of the box Awhich 1s preferably of cast-iron, and C is the closure plug for said member B, which` may be of cast-iron or other suitable material. The member B is provided at its upper end .with an exterior beveled flange f designed to lessen theliability of'a pe cstrian tripping over the member; and it is also provided adjacent to its upper end with an interior'flange g. On its inner side adjacent to its lower end the member B is provided with three (more or less) vertical series of curvilinear projections h, Figs. 2 and 7, the said series being equidistant, and the curvilinear projections h being disposed at a riglht angle to the length of the member, and t eir ends being beveled or pointed after the manner illustrated. The closure plug C hasfa major portion designed to rest on the flange g of member B, and a reduced portion 'i adapted to rest within the said flange g; land 1t is preferably connected in a permanent though loose manner with the member B through the medium of a chain as shown in- Fig. 2. toypass through a notch k in the flange b, Fig. 2, in order not to interfere with the reduced portion of the closure plug 'C resting snugly within the said flange g.

In the practical use of my novel service box, when it is desired to adjust the box as to length so as to properly 'accommodate the box to the depth at which a cut-off valve is arranged below the surface, it is simplynccessary to turn the upper `or'outer member B through a part of a revolution so as to place the projections h or rather the three series of projections 'h in the spaces between the three series of projections d on the loweror interior member A, and then move the member B rectilinearly with respect to the member A until the box is of the length desired, and then turn the member B through a part of a revolution so as to position its projections h between the circumferential projec- Thischain j is designed rectilinearly up on the member A, the upper-v 4most projections h of said member B will tions d of the member A, when, as will be 'readily'apparent, the member B will be con- ,nected to and supported by the member A,

and this in such manner that the member B is free to be raised to a certain extent on and upper end of the member A are arranged in vertical alinement withithe spaces between the three series of projections d, and hence 1t follows that when the member B 1s moved bring up against the projections b of the member A, and in that way prevent casual disconnection of the members. It will also be seen that when a veryl short service box is desired, the pro'ections b on member A may be positioned under the flange g of member B.

It will be gathered from the foregoing that to increase or diminish the length of my novel Servicebox, it is simply necessary to move the member B rectilinearly with respect to the member A to the extent desired, and then turn the said member Bthrough a part of a revolution,.and it is obvious that this operation may be expeditiously and easily accomplished even when the box has been in the ground for a considerable period, and rust as collected on the projections of the members. It will also be gathered that the box as a whole is susceptible of being cheaply produced and'is well adapted lto withstand'V the usage to which service boxes are ordinarily subjected.

The construction herein illustrated and described constitutes the best embodiment of my invention at present known to me, but i-t is obvious that in practice such changes in the form and relative arrangement of parts may be made as fairly fall',`within the scope of my invention as defined in` the claims appended.

Havin described my invention, what I f .claim an desire to secureby Letters-Patent,

ISI

`1. In a service box, the combination with a lower or interior member having a base -and upper circumferential projections sepa-I rated .by vertical spaces and also having vertical series of circumferential projections se arated by vertical spaces in vertical ahnement with the upper projections and further having the upper projections and the vertical series of projections disposed at right angles to its length; of an upper or exterior member arranged to receive the lower or interior member and having on the inner side of its lower portion projections separated by spaces and extending at a right angle to its length and arranged when the upper or exterior member is turned throughy a part of a revolution to assume positions between projections on the lower or interior member.

2. In a service box, the combination With a lower or interior member having a base and upper circumferential projections. b separated by vertical spaces and also having vertical series of circumferential projections d lseparated by vertical spaces in vertical alinement with the upper projections b and further having the projections b and d disposed at right angles to its length; of an upper or exterior member arranged to receive the lower or interior member and' having an exterior beveled flange at Aits upper end and an interior flange adjacent to said end, and also having on the inner-side of its lower portion projections h separated by spaces of the width described andextending at a right angle to its length and arranged when the upper or exterior member is turned vthrough .a part of 'a revolution to assume positions between projections on the lower orO interior member, and a closure plug looselyconnected with the upper'or exterior member and arranged to rest on the interior flange thereof and having a lower reduced portion adapted to rest snugly within the said flange.

In testimony whereof I have hereunto setmy hand in presence of two subscribing witnesses.

` WILLIAM DENNISON Witnesses:

GEO. W. KENDALL, WILBUR J. DINKEL. 

